Baby mice wine is a traditional drink in China and Korea. It is known as a health tonic and said to taste like raw gasoline. Baby mice are taken from their mothers while their eyes are still closed and placed in rice wine while alive.
There they are left to drown and ferment. It isn’t just one mouse, but a slew of them floating at the bottom of the bottle. It is believed to heal anything from asthma to liver disease. After drinking the wine, one is indeed supposed to eat the dead baby mice.
In China they also have snake wine. It is the same concept as the mice wine, except there are snakes coiled up at the bottom of the wine bottle. A specific snake used in the wine is the cobra. It is unclear whether you are supposed to eat the cobra. That could be dangerous, seeing as how they are poisonous.